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Prof. Itay Mayrose Lab – Plant Evolution, Bioinformatics, & Comparative Genomics







CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous, please submit new counts, or report erroneous counts.


CCDBAngiospermsCompositaeRudbeckiaRudbeckia bicolor Nutt.

5 chromosome counts in Rudbeckia bicolor Nutt.:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Rudbeckia bicolor Nutt. Rudbeckia bicolor Nutt. 19   CHROBASE BATTAGLIA E. - 1946. Ricerche cariologiche ed embriologiche sul genere Rudbeckia (Asteraceae).I-V.Il gametofito femminile e maschile di R.bicolor Nutt., R.hirta L., R.hirta L. var.meine freude Hort., R.amplexicaulis Wahl. e R.purpurea L. (=Echinacea purpurea Moench).. N. Giorn. Bot. Ital., n.s. , 53: 1/1/2026.
  Rudbeckia bicolor Nutt. Rudbeckia bicolor Nutt.   38 IPCN online Probatova, N. S., E. G. Rudyka & S. A. Sokolovskaya. 1998. Chromosome numbers in vascular plants from the islands of Peter the Great Bay and Muravyov-Amurskiy Peninsula (Primorsky territory). Bot. Žhurn. (Moscow & Leningrad) 83(5): 125–130.
  Rudbeckia bicolor Nutt. Rudbeckia bicolor Nutt.   38 IPCN online Probatova. 2006. Chromosome numbers of some plant species of the Primkorsky Territory and the Amur River basin. Bot. Žhurn. (Moscow & Leningrad) 91(5): 785–804.
!   Rudbeckia bicolor Nutt. Rudbeckia bicolor Nutt. 19   IPCN72 SOLBRIG, O.T., D.W. KYHOS, M. POWELL, & P.H. RAVEN. 1972. Chromosome numbers in Compositae VIII: Heliantheae. Amer. J. Bot. 59: 869-878.
  Rudbeckia bicolor Nutt. Rudbeckia bicolor Nutt.   38 Fedorov, 1974 Battaglia 1947a